in arch/i386/mm/init.c, there's a #define for __free_all_bootmem():

#ifndef CONFIG_DISCONTIGMEM
#define __free_all_bootmem() free_all_bootmem()
#else
#define __free_all_bootmem() free_all_bootmem_node(NODE_DATA(0))
#endif /* !CONFIG_DISCONTIGMEM */

However, both of those functions end up eventually calling the same
thing:

	free_all_bootmem_core(NODE_DATA(0))

This might have once been a placeholder for a more complex bootmem
init call, but that never happened.  So, kill off the DISCONTIG
version, and just call free_all_bootmem() directly in both cases.
Signed-off-by: Dave Hansen <haveblue@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>